Chicago's Marion Todd, left, and Marge Kraus were ambassadors during National Hot Dog Month in July 1957 and toured the nation to promote the beloved frankfurter. Here, they posed with a plate of 60 hot dogs, which at the time represented what the average American ate in a year. Their lovely...

Chicago's Marion Todd, left, and Marge Kraus were ambassadors during National Hot Dog Month in July 1957 and toured the nation to promote the beloved frankfurter. Here, they posed with a plate of 60 hot dogs, which at the time represented what the average American ate in a year. Their lovely... (Tribune archive photo)

With hair already blocking some of his sight, "Joker" got a little help viewing ships moving near the Lake Michigan shoreline at Calvary Beach in Evanston in July 1959. The English sheep dog belonged to the Marshall family, Terry, 7, Shelia, 14, and their father, William.

With hair already blocking some of his sight, "Joker" got a little help viewing ships moving near the Lake Michigan shoreline at Calvary Beach in Evanston in July 1959. The English sheep dog belonged to the Marshall family, Terry, 7, Shelia, 14, and their father, William. (Tribune archive photo)